Home / 263,326.15-395,030.19-85,791.85

Finding the Fourth Proportional to 263,326.15, 395,030.19 and 85,791.85

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Solution

The fourth proportional to 263,326.15, 395,030.19 and 85,791.85 is: 128,701.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,326.15 : 395,030.19 = 85,791.85 : x
  2. Step 2: Convert to fraction form
    263,326.15/395,030.19 = 85,791.85/x
  3. Step 3: Cross multiply
    263,326.15x = 395,030.19 × 85,791.85
  4. Step 4: Simplify right side
    263,326.15x = 33,890,370,805.95
  5. Step 5: Solve for x
    x = 33,890,370,805.95/263,326.15
  6. Step 6: Final answer
    x = 128,701.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.